A Study of SGN-STNV in Advanced Solid Tumors

This trial will look at a drug called SGN-STNV to find out whether it is safe for patients with solid tumors. It will study SGN-STNV to find out what its side effects are. A side effect is anything the drug does besides treating cancer. It will also study how well SGN-STNV works to treat solid tumors.

The study will have two parts. Part A of the study will find out how much SGN-STNV should be given to patients. Part B will use the dose found in Part A to find out how safe SGN-STNV is and if it works to treat certain types of solid tumors.

Erlotinib Combined With Gemcitabine in Treating Patients With Newly Diagnosed Locally Advanced or Metastatic Pancreatic Cancer or Other Solid Tumors

RATIONALE: Erlotinib may interfere with the growth of tumor cells and slow the growth of the tumor. Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining erlotinib with gemcitabine may kill more tumor cells.

PURPOSE: Phase I trial to study the effectiveness of combining erlotinib with gemcitabine in treating patients who have newly diagnosed locally advanced or metastatic pancreatic cancer or other solid tumors.

Early Detection of Pancreatic Cancer in Patients With Papillary and Mucinous Intracanal Tumours of the Pancreas Papillary and Mucinous Tumours of the Pancreas

This trial is a prospective, exploratory and descriptive study. The primary objective is to identify early diagnostic biomarkers in patients with TIPMP based on the analysis of Treg lymphocyte subpopulations and epigenetic signatures, and the secondary objective is to characterize the biological processes underlying the transformation of a pre-neoplastic lesion into established ADPC.

Vinegar-induced Collection of Duodenal Pancreatic Juice Via Endoscopic Ultrasound

The goal of this clinical trial is to learn about the feasibility of collecting pancreatic juice through duodenal aspiration by ultrasound endoscopy (EUS) for molecular marker testing after intraduodenal infusion of vinegar in patients with suspected pancreatic cancer and who are scheduled to have endoscopic ultrasound with fine needle aspiration (EUS-FNA). The main questions it aims to answer are:

* Is vinegar-induced collection of duodenal pancreatic juice via endoscopic ultrasound feasible?
* What is the best operating condition (amount of vinegar, collection time, etc.) of vinegar-induced collection of duodenal pancreatic juice via endoscopic ultrasound?

Participants will have EUS as scheduled, during which different amount of vinegar will be infused into duodenum and then pancreatic juice be collected for different time via suction by EUS.

Researchers will compare the amount of collected pancreatic juice and molecular marker level in different groups to determine the best operating condition for vinegar-induced collection of duodenal pancreatic juice via endoscopic ultrasound.

CEA-Targeted CAR-T Therapy in CEA-Positive Advanced Solid Tumors

This study is a single-arm, open-label, dose-escalating + dose-expansion clinical study, aiming to evaluate the safety and efficacy of CEA-targeted CAR-T cell preparations, and to preliminarily observe the study drug in CEA-positive advanced malignant tumors. The pharmacokinetic characteristics of CAR-T cell preparations for the treatment of patients with CEA-positive advanced malignancies were obtained and the recommended dose and infusion schedule.

Macrophages Effect on Chemoresistance

Macrophages are derived from monocytes recruited to the tumor site and stimulated by specific chemokines secreted by tumor cells. These tumor associated macrophages (TAMs) have been postulated as being involved in the progression of cancer.

Based on our preliminary findings and on published data we hypothesized that macrophage-induced chemoresistance (MIC) can promote survival of pancreatic carcinoma cells during chemotherapy.

The overall goal of this study is to evaluate the mechanism of MIC in an in-vitro model of Pancreatic ductal adenocarcinoma (PDA).

methods:

1. The human PDA cell line Panc1 will be grown in suitable conditions.
2. Macrophages will be produced by incubating mononuclear cells from the blood of healthy donors in medium with M-CSF for 7 days.
3. TAMs will be generated by culturing these macrophages with tumor-culture conditioning medium (TCCM) of PDA Cells for an additional 72 hours.
4. Human pancreatic cells (PANC1) will be treated with gemcitabine following exposure to macrophages CM.
5. Cell proliferation will be quantified by light microscopy and by an XTT Cell Proliferation Assay Kit.

Secretin (ChiRhoStim) Pancreas Perfusion for Pancreatic Adenocarcinoma

The purpose of this study is to test if secretin-enhanced CT is a useful noninvasive screening tool for pancreatic cancer in a high-risk population.

Study of Lonsurf in Combination With Gemcitabine and Nab-Paclitaxel in Patients With Advanced (PDAC)

The purpose of this study is to determine the recommended phase 2 dose (RP2D) of the combination of lonsurf, gemcitabine and nab-paclitaxel in Pancreatic ductal adenocarcinoma (PDAC)

Diagnosis of Multiple Cancer and Monitoring of Minimal Residual Tumors After Treatment Using Blood and High-Sensitivity Genetic Analysis Techniques

This is a combined prospective and retrospective observational study aiming to validate a highly sensitive and specific blood-based method for the early diagnosis and post-treatment monitoring of multiple cancers. The study leverages a newly developed sequencing method to improve the detection of circulating tumor DNA (ctDNA) in blood, focusing on enhancing sensitivity and specificity in clinical applications.

The study targets patients with ovarian, lung, pancreatic, colorectal, esophageal, breast, kidney, bladder, and gastric cancer, as well as healthy controls with asymptomatic gallstones, benign polyps, or individuals undergoing routine medical screening. Blood samples will be analyzed for cell-free DNA (cfDNA), RNA, and protein profiles. A key objective is to determine how much the newly developed method increases the sensitivity and specificity of ctDNA detection, especially in early-stage cancers and minimal residual disease (MRD) after treatment.

The method evaluates the variant allele frequency (VAF) of ctDNA to detect residual disease and track tumor dynamics. Serial blood sampling will be conducted before and after surgery or chemotherapy and during follow-up outpatient visits in cancer patients, while one-time sampling will be done for controls. Additionally, tissue biopsies collected during surgery will be used to analyze concordance between tumor-specific mutations and those found in ctDNA.

Primary outcome measures include quantitative differences in ctDNA or RNA levels between cancer and control groups. Secondary outcomes assess the clinical correlation between changes in ctDNA VAF and patient outcomes such as recurrence and survival. Statistical tools including ROC curve analysis, Cox regression, and log-rank tests will be used to quantify performance.

This study seeks to establish a clinically robust, non-invasive diagnostic tool that enables earlier detection and more precise treatment decisions, while potentially reducing physical, psychological, and socioeconomic burdens related to cancer care.

A Study to Find a Suitable Dose of ASP5834 in Adults With Solid Tumors

Genes contain genetic code which tell the body which proteins to make. Many types of cancer are caused by changes, or mutations, in a gene called KRAS. Researchers are looking for ways to stop the actions of abnormal proteins made from the mutated KRAS gene.

ASP5834 is being studied in people with solid tumors who have certain KRAS gene mutations. Some people with solid tumors of the colon or rectum (colorectal cancer), will be given ASP5834 with panitumumab. Panitumumab is a treatment for colorectal cancer. In this study, the researchers will learn how ASP5834 is processed by and acts upon the body. This information will help find a suitable dose of ASP5834 and check for any potential medical problems from the treatment.

The main aims of this study are to check the safety of ASP5834 given by itself or given with panitumumab, and how well it is tolerated; and to find a suitable dose of ASP5834 given by itself or given with panitumumab.

People in this study will be adults with locally advanced, unresectable, or metastatic solid tumors with certain KRAS gene mutations. Locally advanced means the cancer has spread to nearby tissue. Unresectable means the cancer cannot be removed by surgery. Metastatic means the cancer has spread to other parts of the body. The key reasons people cannot take part are if they have specific uncontrollable cancers such as symptomatic or untreated cancers in nervous system, or have a specific heart condition, or infections.

In this study, ASP5834 is being given to humans for the first time. This is an open-label study. This means that people in this study and clinic staff will know that they will receive ASP5834 by itself or ASP5834 with panitumumab.

This study will be in 2 parts:

Part 1 is called Dose Escalation. Different small groups of people will receive lower to higher doses of either: ASP5834 by itself or ASP5834 with panitumumab. Only people who have colorectal cancer will receive ASP5834 with panitumumab. People with any type of solid tumor will receive ASP5834 by itself. For each dose, all medical problems will be recorded. A medical expert panel will check the results and decide if the next group can receive a higher dose of ASP5834. The panel will do this until the planned maximum number of people are treated or until suitable doses have been selected for Part 2.

Part 2 is called Dose Expansion. Other different small groups of people will receive ASP5834 or ASP5834 with panitumumab. They will receive the most suitable doses worked out from Part 1.

In both parts of the study, the study treatments ASP5834 and panitumumab will be given through a vein. This is called an infusion. Each study treatment cycle is either 21 days or 28 days long. People will continue study treatment until: they have medical problems from the study treatment they can't tolerate; their cancer gets worse; they start other cancer treatment; or they ask to stop study treatment.

People will visit the clinic on certain days during their study treatment, with extra visits during the first 2 cycles of study treatment. The study doctors will check for any medical problems from ASP5834. Also, people in the study will have a health check. On some visits they will also have scans to check for any changes in their cancer. Tumor samples will be taken at certain visits during study treatment with the option of a tumor sample being taken if people's cancer gets worse or the cancer comes back.

People will visit the clinic shortly after stopping treatment for a health check. After this, people will have health checks every couple of months to check the condition of their cancer. The number of visits and checks done will depend on the health of each person and whether they completed their study treatment or not. It is expected that people will be in this study for about 1 year.